Local magnetooptical study of magnetic structures in high-temperature superconducting composites. Bulletin of the Russian Academy of Sciences: Physics Volume 77, Issue 3, March 2013, Pages 333-336

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Вид публикации	Статья
Контактные данные автора публикации	Rudnev, I.A.ab , Osipov, M.A.a a National Research Nuclear University (MEPhI), Moscow 115409, Russian Federation b International Laboratory of High Magnetic Fields and Low Temperatures
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Аннотация

The results from magnetooptical investigations of the remagnitization processes in composite film structures based on high-temperature superconductors in the temperature range of 4 to 80 K are presented. It is shown that the remagnetization of structures is due to the formation and propagation of wave of magnetic flux annihilation (areas with zero magnetic induction). The relationship between the penetration depth of annihilation front and the external magnetic field at different ambient temperatures, and the temperature dependence of the rate of motion of the front of magnetic flux annihilation, are found. The experimental data qualitatively fit the results from numerical calculations performed using the Monte Carlo method. © 2013 Allerton Press, Inc.

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Indexed keywords

External magnetic field; High temperature superconducting; Magneto-optical; Numerical calculation; Propagation of waves; Remagnetization; Temperature dependence; Temperature range

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